A fork of Rural Dictionary
Yuppeer dupper doo is an exclamation which can mean all things, whether it be happiness, saddness, anger, or any other intense emotion
Yupper dupper doo! This pizza is scrumdiddlyumptious
Means most definitely but can also mean not definitely
Person 1: Can you answer my question?
Person 2: Yuppers Duppers
Person 1: So?
Person 2: Dumbass yuppers duppers can mean not definitely